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CONSOLIDATED STATEMENTS OF CASH FLOWS - ARS ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
CASH FLOWS FROM OPERATING ACTIVITIES |  |  |
Net income for the year | $ 7,724 | $ 4,005 | $ 3,435
Adjustments to reconcile net income to net cash flows provided by operating activities |  |  |
Bad debt expenses | 1,113 | 1,228 | 564
Allowance for obsolescence of inventories, materials and other | 103 | 77 | 72
Depreciation of property, plant and equipment | 5,039 | 4,358 | 3,046
Amortization of intangible assets | 1,889 | 1,840 | 1,392
Consumption of materials | 1,125 | 507 | 294
Disposals and impairment of property, plant and equipment | 276 | 366 | 199
Net book value of property, plant and equipment | 77 | 21 | 35
Adjustments for provisions | 590 | 187 | 113
Other financial results | 1,165 | 1,721 | 351
Income tax expense | 3,902 | 1,594 | 1,692
Income tax paid | (2,400) | (1,700) | (1,631)
Net increase in assets | (3,592) | (1,660) | (4,640)
Net increase (decrease) in liabilities | 2,321 | (1,179) | 1,890
Total cash flows provided by operating activities | 19,332 | 11,365 | 6,812
CASH FLOWS FROM INVESTING ACTIVITIES |  |  |
Property, plant and equipment acquisitions | (10,727) | (9,541) | (5,148)
3G/4G licenses acquisitions |  |  | (2,256)
Other intangible asset acquisitions | (971) | (1,798) | (1,310)
Personal shares acquisitions | (4) |  |
Proceeds from the sale of property, plant and equipment | 27 | 19 | 39
Acquisition of Tuves Paraguay | 2 |  |
Incorporated by Merge with Nortel | 6 |  |
Investments not considered as cash and cash equivalents | (2,627) | (20) | (976)
Total cash flows used in investing activities | (14,294) | (11,340) | (9,651)
CASH FLOWS FROM FINANCING ACTIVITIES |  |  |
Proceeds from financial debt | 1,730 | 9,337 | 4,301
Payment of financial debt | (2,986) | (2,936) | (31)
Payment of interests and related expenses | (848) | (1,573) | (471)
Payment of cash dividends and related withholding tax | (4,192) | (2,000) | (849)
Total cash flows provided by (used in) financing activities | (6,296) | 2,828 | 2,950
NET FOREIGN EXCHANGE DIFFERENCES ON CASH AND CASH EQUIVALENTS | 144 | 222 | 75
(DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS | (1,114) | 3,075 | 186
CASH AND CASH EQUIVALENTS AT THE BEGINNING OF THE YEAR | 3,945 | 870 | 684
CASH AND CASH EQUIVALENTS AT THE END OF THE YEAR | $ 2,831 | $ 3,945 | $ 870

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